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Time-mode circuits, the place info is represented via time distinction among electronic occasions, supply a doable and technology-friendly capacity to gain mixed-mode circuits and platforms in nanometer complementary metal-oxide semiconductor (CMOS) applied sciences. quite a few architectures of time-based sign processing and layout recommendations of CMOS time-mode circuits have emerged; even though, an in-depth exam of the rules of time-based sign processing and layout recommendations of time-mode circuits has no longer been available―until now.

2 shows the typical waveforms for a 10A load step transient, resulting in only a 60mV maximum deviation from nominal. 1. The sense voltage is translated into a power stage input current by the LTC3883’s 16-bit internal ADC. In addition, an internal IC sense resistor senses the chip’s supply current at VIN, so it can provide both the chip and the power stage’s input current measurements. Inductor DCR autocalibration The problem with conventional inductor DCR current sensing is that the tolerance of the DCR can be as large as ±10%, greatly limiting the current read back accuracy.

1 can be easily modified to fit a wide range of applications. 5k. If higher current is required, add more MOSFETs in parallel and use a bigger transformer and output inductor. If lower power is required, smaller power components can be used. For lower input voltages use a lower voltage primary MOSFET, lower current sense resistor value, proportionally reduce the transformer turns ratio and lower the value of R2. Conversely, for higher input voltages, increase these values. This circuit can also be modified to make a 12V, 20A bus converter.

Conclusion The LTC3883 combines a best in class analog DC/DC controller with complete power system management functions and precision data converters for unprecedented performance and control. Multiple LTC3883s can be used with other Linear Technology PMBus products to optimize multirail power systems. The powerful LTpowerPlay software simplifies the development of complex power systems. If dual outputs are needed, use the LTC3880 which shares common power system management features. 3 • DCR Autocalibration 6 D I IN One device replaces battery charger, pushbutton controller, LED driver and voltage regulator ICs in portable electronics 2 Marty Merchant Introduction The LTC3577/LTC3577-1 integrates a number of portable device power management functions into one IC, reducing complexity, cost and board area in handheld devices.